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72048404 = 2228363647
BaseRepresentation
bin1000100101101…
…01111100010100
312000120102211102
410102311330110
5121421022104
611052125232
71533254441
oct422657424
9160512742
1072048404
113774003a
1220166818
1311c07cbc
1497d69c8
1564d2a1e
hex44b5f14

72048404 has 12 divisors (see below), whose sum is σ = 126532224. Its totient is φ = 35896344.

The previous prime is 72048391. The next prime is 72048409. The reversal of 72048404 is 40484027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72048409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30692 + ... + 32955.

It is an arithmetic number, because the mean of its divisors is an integer number (10544352).

Almost surely, 272048404 is an apocalyptic number.

It is an amenable number.

72048404 is a deficient number, since it is larger than the sum of its proper divisors (54483820).

72048404 is a wasteful number, since it uses less digits than its factorization.

72048404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63934 (or 63932 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 72048404 is about 8488.1331280795. The cubic root of 72048404 is about 416.1099700022.

The spelling of 72048404 in words is "seventy-two million, forty-eight thousand, four hundred four".

Divisors: 1 2 4 283 566 1132 63647 127294 254588 18012101 36024202 72048404